According to the Nature News Service in Bolivia this year the winter was exceptionally harsh, which tragically was reflected on the local fauna.
The low temperatures killed about 6 million fish, and thousands of alligators, turtles and freshwater dolphins . It is the largest biological catastrophe in this region, at least as he remembers the modern science. For example, the Santa Cruz River one thousand dead fish for every one hundred meters of the river .
River, where temperatures in winter hover around 15 degrees Celsius, and this year was 4 degrees. Researchers have been trying to figure out what exactly and directly kills fish - low temperatures and shock associated with it, or rather the chill is only an indirect factor because it makes the fish become much more vulnerable, which in optimal conditions are resistant - various disease and parasites.
Unfortunately, climate change seems to be a fact odciskającym increasingly clear imprint on nature.
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